1.1. Transport Portal: Unrelenting

1.2. Platform Mini-Bosses

1.2.1. Vulcanar

Vulcanar is protected by an Aegis of Flames on Mythic,
which reduces all damage taken by 90%. Aegis has three stacks, and can only be
removed by a Caustic Detonation (one stack removed per detonation).
The number of stacks currently active does not activate the damage reduction
bonus — it is always 90% reduction, even at one stack.

1.2.2. Lady Dacidion

Leech Essence steals health from the 5 nearest players within
70 yards, inflicting 15% of their current health as Nature damage. Lady
Dacidion is healing for five times the amount stolen. This healing can be
negated by Hungering Gloom.

1.2.3. Lord Eilgar

Lord Eilgar will put all healers within 35 yards under the
effects of Delusions, reducing Healing and Absorbs by 100%
for 10 minutes. It also restores 2% of maximum Mana every second for
the duration. Delusions is a dispellable debuff.

2. Strategy

Portal Keeper Hasabel is largely the same on Mythic difficulty,
however, there is a new "rock-paper-scissors" type mechanic associated with the
platforms. Each mini-boss has a new mechanic that can only be nullified by a
debuff acquired from one of the other platforms.

Generally, it is best to send melee classes and ranged with high burst to
the platforms, as you want the mini-bosses to die as fast as possible. It may
take a few pulls to find the balance, but ideally your raid should send as
many people to the platforms as possible while still being able to clear the
add waves from Transport Portal.

The Felblaze Imps' Fiery Detonation presents a very lethal
threat on this difficulty. Casts must be interrupted or Crowd Controlled, or
the raid will quickly be flattened. This is a great fight for classes that
value the active of Sephuz's Secret; for example, Shadow Priests can
stun a few adds from every Transport Portal with Mind Bomb
while proccing their legendary.

All the portal timings are the same on Mythic (90%, 60%, 30%). In order
to strip Vulcanar's Aegis of Flames, three players will need
to go to the Rancora platform (green portal) and walk through the green orbs
in order to pick up Caustic Slime. The afflicted players need to
move to the Xoroth platform in time for Vulcanar to spawn, such that
when Caustic Slime expires, they are next to Vulcanar. The expiry of Caustic
Slime will trigger a Caustic Detonation which will remove a stack of
Vulcanar's Aegis. Caustic Slime lasts 20 seconds, and cannot be dispelled,
and therefore the timing can be tricky if you want to maximize your damage
on Vulcanar. The timing depends exclusively on your group's DPS, however, most
raids will want to send their assigned player shortly after pulling the boss
(98-96%). If your group has very high damage, it may be prudent to simply
go immediately.

A good tip for each platform is to have the assigned platform tank be
one of the players taking the debuff(s) to each platform. This helps maximize
damage as well as reducing the risk of the carrier dying as tanks are somewhat
sturdier than the average raid member.

Players that are assigned to platform duty should always hold their DPS
cooldowns for the mini-bosses, as killing them in the shortest window
possible is the number one priority. Healing can be quite a challenge on
Mythic platforms, and therefore you generally want to send at least two of
your Healers to each platform (three, if you have chose to five heal). Tanks
will be taking significant damage from the mini-bosses as well, adding to
the necessity of ending them as quickly as possible.

To prevail on the Rancora platform, a player will need to go to the
Nathreza platform (ideally the tank, as mentioned earlier) in advance and
collect a purple orb in order to acquire the Cloying Shadows
debuff. When this debuff expires or is dispelled, it will apply
Hungering Gloom to everything within eight yards. This reduces all
Healing by 100% for 20 seconds on Lady Dacidion, though the duration is
reduced on the player.

Hungering Gloom sets a bit of a clock on this platform; if your
raid's damage is average to high, you should be able to kill Dacidion as the
debuff is expiring, powering through any healing from Leech Essence.
If your damage is a bit low, however, you may need to send a player back to
Platform Nathreza to re-acquire Cloying Shadows. If the Healers have good
control, you can keep the group at relatively low health (~35%) to reduce the
effects of Leech Essence (as it heals based off current health).